How many times larger 1.9 x 10^-8 is than 4.2 x 10^-13. ​

Question

How many times larger 1.9 x 10^-8 is than 4.2 x 10^-13.

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Parker 7 hours 2021-09-12T17:25:42+00:00 1 Answer 0

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    2021-09-12T17:27:18+00:00

    Evaluate 7x104x4x105 aka 2.8×10 10,
    Idk the rest- sorry 🙁

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45:7+7-4:2-5:5*4+35:2 =? ( )